KENNEDY SPACE CENTER, FL – A classified surveillance for the nation’s spymasters is set for blastoff shortly after sunrise on Sunday, Apr. 30 by SpaceX in a space first by the firm founded by billionaire entrepreneur Elon Musk that also features a ground landing attempt by the booster. Update: Scrub reset to May 1

Liftoff of the still mysterious NROL-76 classified payload for the National Reconnaissance Office, or NRO, is slated Sunday morning, April 30 from SpaceX’s seaside Launch Complex 39A on NASA’s Kennedy Space Center in Florida.

The Falcon 9 rocket and NROL-76 payload have been mated and rolled about a quarter mile up the ramp at pad 39A.

The 229-foot-tall (70-meter) Falcon 9/NROL-76 were raised erect this morning, Saturday, April 29 and are poised for liftoff and undergoing final prelaunch preparations.

The breakfast time launch window on Sunday, April 30 opens at 7 a.m. EDT (1100 GMT). It extends for two hours until 9.a.m. EDT.

#NROL76 will carry a classified payload designed, built and operated by @NatReconOfc. @SpaceX @45thSpaceWing. Credit: NRO

The exact time of the spy satellite launch within the two hour window is classified at less than T Minus one day.

Spectators have been gathering from across the globe to witness the exciting launch and landing and area hotels are filling up.

A brand new Falcon 9 is being used for the launch unlike the recycled rocket utilized for the prior launch of the SES-10 mission involving history’s first reflown orbit class booster.

As is typical for NRO missions, nothing is publicly known about the satellite nor has the NRO released any details about this mission in support of national security other than the launch window.

We also know that this is the first launch of a spy satellite for the US governments super secret NRO spy agency by SpaceX and a source of pride for Musk and all SpaceX employees.

However you can watch the launch live on a SpaceX dedicated webcast starting about 20 minutes prior to the 7:00 am EDT opening of the window.

Everything is on track for Sunday’s launch of the 229 foot tall SpaceX Falcon 9 on the NRO launch of NROL-76.

And the weather looks promising at this time.

Sunday’s weather outlook is currently forecasting an 80% chance of favorable conditions at launch time. The concerns are for cumulus clouds according to Air Force meteorologists with the 45th Space Wing at Patrick Air Force Base.

Until now launch competitor United Launch Alliance (ULA) and its predecessors have held a virtual monoploy on the US military’s most critical satellite launches.

The last first stage booster during the SES-10 launch of the first recycled rocket landed on a droneship barge at sea last month.

SpaceX will also attempt to achieve the secondary mission goal of landing the 156 foot tall first stage of the Falcon 9 rocket on land at Cape Canaveral Air Force Station’s Landing Zone 1, located a few miles south of launch pad 39A.

This counts as the fourth time SpaceX will attempt a dramatic land landing potentially visible to hundreds of thousands of locals and tourists.

NROL-76 will be the fifth SpaceX launch of 2017.

Watch for Ken’s continuing onsite launch reports direct from the Kennedy Space Center and Cape Canaveral Air Force Station in Florida.

MERRITT ISLAND NATIONAL WILDLIFE REFUGE, FL – Elon Musk’s SpaceX is primed for another significant space first; the firms first launch of a spy satellite for the US governments super secret spy agency; the National Reconnaissance Office, or NRO – following today’s successful static hotfire test of the Falcon 9 launchers first stage booster.

Tuesday’s hotfire test to took place shortly after 3 p.m. this afternoon, April 25, at SpaceX’s seaside Launch Complex 39A at NASA’s Kennedy Space Center in Florida.

The successful test paves the path for launch of the NROL-76 classified payload for the NRO atop a SpaceX Falcon 9 rocket this Sunday morning, April 30 from pad 39A.

The engine test is conducted using only the first two stages of the rocket – minus the expensive payload in case anything goes wrong as like occurred during the catastrophic AMOS-6 static fire disaster last September.

The test is routinely done so that SpaceX engineers can confirm the readiness of the rocket and all its systems to safely and successfully launch the specified payload to its intended orbit.

Furthermore this launch is also notable because it features the next land landing by a SpaceX Falcon 9 first booster back at the Cape for only the fourth time in history – which also makes for an extremely thrilling experience – and unforgettable space enthusiasts event.

So by all means try to witness this launch from the Florida Space Coast in person, if at all possible.

The breakfast time launch window on Sunday, April 30 opens at 7 a.m. EDT. It extends for two hours until 9.a.m. EDT.

The long range weather outlook currently looks favorable with lots of sun and little rain. But that can change on a moment’s notice in the sunshine state.

The brief engine test lasting approximately three seconds took place at 3:02 p.m. today, Tuesday, April 25, with the sudden eruption of smoke and ash rushing out the flame trench to the north and into the air over historic pad 39A on NASA’s Kennedy Space Center during a picture perfect sunny afternoon – as I witnessed from the Merritt Island National Wildlife Refuge in Titusville, FL.

During today’s static fire test, the rocket’s first and second stages are fueled with densified liquid oxygen and RP-1 propellants like an actual launch, and a simulated countdown is carried out to the point of a brief engine ignition with the rocket firmly clamped down and held in place.

The hold down engine test with the erected rocket involved the ignition of all nine Merlin 1D first stage engines generating some 1.7 million pounds of thrust at pad 39A while the two stage rocket was restrained on the pad.

This is only the fourth Falcon 9 static fire test ever conducted on Pad 39A.

Pad 39A has been repurposed by SpaceX from its days as a NASA shuttle launch pad.

Watch this video of the April 25 static fire test from colleague Jeff Seibert:

Video Caption: Static fire test of the Falcon 9 core in preparation for NROL-76 launch scheduled for April 30, 2017. A Falcon 9 booster undergoes a captive static fire test as a step in the launch preparation for the first dedicated NRO launch by SpaceX. Credit: Jeff Seibert

Following the engine test, the propellants are drained and the rocket is rolled off the pad and back into the huge SpaceX processing hanger at the pad perimeter.

The NROL-76 classified surveillance satellite will be bolted on top. The rocket will be rolled back to pad 39A in advance of Sunday’s planned blastoff.

A ULA Atlas V rocket carrying the NROL-61 satellite is poised for blastoff from the pad at Space Launch Complex-41 at Cape Canaveral Air Force Station in Florida on July 28, 2016. Credit: Ken Kremer/kenkremer.com

CAPE CANAVERAL AIR FORCE STATION, FL — The nation’s newest surveillance satellite is all set for a brilliant breakfast blastoff on Thursday July 28 atop a powerful Atlas V rocket from the Florida Space Coast – and both the booster and weather are in excellent shape at this time!

The NROL-61 mission is set to lift off on a United Launch Alliance (ULA) Atlas V rocket on Thursday morning July 28 from Space Launch Comple-41 at Cape Canaveral Air Force Station in Florida.

In an uncommon move, ULA and the military have announced the launch time is 8:37 a.m. EDT.

Virtually everything about the clandestine payload, its mission, purpose and goals are classified top secret.

The NRO is the government agency that runs a vast fleet of powerful orbital assets hosting a multitude of the most advanced, wide ranging and top secret capabilities.

The most recent NRO payload, known as NROL 37, was just launched by ULA last month on their Delta IV Heavy – the most powerful rocket in the world on June 11 – read my story here.

The excitement is building with the launch just a day away and visitors are checking into local area hotels hoping for a magnificent show from the venerable Atlas rocket with a perfect record of launch performance.

Better yet if you are free and mobile you can watch this truly impressive feat with your own eyes by making your way to the many excellent viewing locations surrounding Cape Canaveral in every direction.

Here’s the rather cool ULA mission art with a webcast link.

ULA Webcast info for launch of Atlas V NROL-61 mission for the National Reconnaissance Office (NRO) on July 28, 2016. Credit: ULA/NRO

The NROL-61 patch depicts a green lizard, Spike, riding an Atlas V launch vehicle from the Cape Canaveral AFS. Spike was chosen as the mission mascot.

The Florida weather outlook is looking quite promising at this time rather favorable. Air Force meteorologists are predicting an 80 percent chance of ‘GO’ with favorable weather conditions for Thursdays breakfast time blastoff.

The primary weather concern is for Cumulus Clouds.

In the event of a scrub delay for any reason, a backup launch opportunity exists on Friday, July 29. The weather odds are the same at 80% GO!

The rocket should put on a spectacular sky show since it is equipped with a pair of powerful solid rocket boosters spewing fire and an expanding plume of smoke and ash as is soars to orbit!

The Atlas rocket and payload were rolled put to launch pad 41 as planned Tuesday morning, July 26 – for a distance of about 1800 feet from the Vertical Integration Facility (VIF) where the rocket and payload were assembled, out to the pad.

It is now visibly erect at the pad from a number of viewing locations including Titusville and Playalinda Beach – positioned in between four lightning masts for protection from lightening.

Here’s a detailed mission profile video describing the launch events:

The NROL-61 mission counts as ULA’s sixth launch of 2016 and the 109th overall since the company was founded in 2006.

A ULA Atlas V rocket carrying the NROL-61 satellite is poised for blastoff from the pad at Space Launch Complex-41 at Cape Canaveral Air Force Station in Florida on July 28, 2016. Credit: Ken Kremer/kenkremer.com

The 20 story tall Atlas V will launch in its 421 configuration – the same as what will be used for manned launches with the crewed Boeing ‘Starliner’ space taxi carrying astronaut crews to the International Space Station.

This will be the sixth Atlas V to launch in the 421 configuration.

The Atlas 421 vehicle includes a 4-meter diameter payload fairing and two solid rocket boosters that augment the first stage. The Atlas booster for this mission was powered by the RD AMROSS RD-180 engine and the Centaur upper stage was powered by the Aerojet Rocketdyne RL10C-1 engine.

The possible roles for the reconnaissance payload include signals intelligence, eavesdropping, imaging and spectroscopic observations, early missile warnings and much more.

The NRO was formed in response to the Soviet launch of Sputnik and secretly created on September 6, 1961.

“The purpose is overseeing all satellite and overflight reconnaissance projects whether overt or covert. The existence of the organization is no longer classified today, but we’re still pressing to perform the functions necessary to keep American citizens safe,” according to the official NRO website.

Watch for Ken’s continuing on site reports direct from Cape Canaveral Air Force Station, the Kennedy Space Center and the ULA Atlas launch pad.